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 (1 中國(guó)建筑科學(xué)研究院結(jié)構(gòu)所，北京 100013；2 北京市建筑設(shè)計(jì)研究院，北京 100045)

［摘要］以剛性模型測(cè)壓風(fēng)洞試驗(yàn)得到的屋蓋風(fēng)壓數(shù)據(jù)作為隨機(jī)激勵(lì)輸入，采用線性系統(tǒng)隨機(jī)振動(dòng)的模態(tài)疊加法，分析了新廣州火車站大跨屋蓋和無(wú)柱站臺(tái)雨棚結(jié)構(gòu)的風(fēng)振響應(yīng)，并通過(guò)CQC方法考慮了高階模態(tài)和模態(tài)間耦合的效應(yīng)。在此基礎(chǔ)上，利用陣風(fēng)因子法計(jì)算得到不同重現(xiàn)期下的等效靜力風(fēng)荷載，并在結(jié)構(gòu)設(shè)計(jì)中成功運(yùn)用。

［關(guān)鍵詞］大跨度屋蓋結(jié)構(gòu)；風(fēng)洞試驗(yàn)；風(fēng)振響應(yīng)；等效靜力風(fēng)荷載；陣風(fēng)因子法

Research on wind-induced response and equivalent static wind load of New Guangzhou Railway Station

Tang Yi¹, Jin Xinyang¹, Zhen Wei², Sheng Ping² (1 China Academy of Building Research, Beijing 100013, China; 2 Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:Taking the wind pressures measured in wind tunnel test as the random input, wind-induced structural dynamic responses on large-span roof structure of New Guangzhou Railway Station were calculated with the linear system stochastic vibration analysis methodology, and the effects of high frequency model and model coupling were considered by using the CQC method. Based on the results of analysis, the equivalent static wind loads (ESWL) on the roof s

tructure were estimated according to the gust load factor (GLF) method for reference wind velocities with variety return period，and used in the structural design of the project.

Keywords:large-span roof structure; wind tunnel test; wind-induced dynamic response; ESWL; GLF

作者簡(jiǎn)介：唐意，博士，Email:yitang_hunan@163.com。

參考文獻(xiàn)

［1］金新陽(yáng),楊易，盛平，等. 新廣州火車大跨屋蓋結(jié)構(gòu)風(fēng)荷載風(fēng)洞試驗(yàn)與數(shù)值模擬研究［J］.建筑結(jié)構(gòu), 2009，39(12).

［2］金新陽(yáng).風(fēng)荷載規(guī)范應(yīng)用中的若干問(wèn)題及設(shè)計(jì)建議［J］.建筑結(jié)構(gòu)，2006，36(S1).

［3］GB50009—2001 建筑結(jié)構(gòu)荷載規(guī)范(2006年版)［S］.北京：中國(guó)建筑工業(yè)出版社，2006.

［4］朱位秋. 隨機(jī)振動(dòng)［M］. 北京: 科學(xué)出版社，1998.

［5］張相庭. 結(jié)構(gòu)振動(dòng)力學(xué)［M］. 上海：同濟(jì)大學(xué)出版社，2000.

［6］DAVENPORT. Gust loading factors［J］. Journal of the Structural Division，ASCE 1967，93(ST3): 11-34.